Rodendrum Help!

Hi all any help please. I'm a complete novice gardener and moved into a house last year with a huge garden. I think I've done a pretty good job so far but I don't know what a lot of the plants are or what to do with them.

wont go into all of them now (although I'm sure I will eventually) but right now I have a Rhododendron which last year bloomed but then one day after some heavy wind all the petals blew off. I haven't touched it since and it looks just the same now but I thought it should have pods?

Usually Rhododendrons just get on with it, you can't stop the wind. It should have flower buds at the moment. After flowering you can very carefully pick of the dead flowers, but you mustn't damage the shoot. When I had a lot of big Rhododendrons in a previous house I never bothered and they were fine.